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Enhancement of Ionic Conductivity by the Addition of Plasticizers in Cationic Monoconducting Polymer Electrolytes by S.H Chung; P Heitjans; R Winter; W Bzäucha; Z Florjańczyk; Y Onoda is a Materials Science article available to read on EtoBox.

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Temperature-dependent Li nuclear magnetic resonance (NMR) spin-lattice relaxation time (T ) data of a lithium 1 monoconducting polymer electrolyte based on maleic anhydride-styrene copolymers are examined in an effort to understand the mechanism of how plasticizers affect significant changes in the observed ionic conductivity (s). The use of strong polar organic plasticizers, such as propylene carbonate, is believed to induce changes in the charge-carrier separation, which is expected to facilitate the transport of ions in these materials. Cationic monoconducting gel electrolytes consisting of 1 polyelectrolytes with immobilized carboxylic anions, charge compensating mobile Li ions, and various combinations of 23 poly(ethylene glycol) dimethyl ether, dimethylsulfoxide, propylene carbonate, and BF exhibit ambient s values from 10 3 26 21 to 10 S cm . For systems not containing BF the T data as a function of inverse temperature and the value of the T at 3 1 1 its minimum are found to be independent of the electrolyte composition in spite of the fact that the d values are observed to 1 increase by 1 to 3 orders of magnitude in these samples. For these samples it is suggested that the

Who reads Enhancement of Ionic Conductivity by the Addition of Plasticizers in Cationic Monoconducting Polymer Electrolytes?

Author

S.H Chung; P Heitjans; R Winter; W Bzäucha; Z Florjańczyk; Y Onoda

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-2738)

Published

1998

Language

EN

Field

Materials Science (Physical Sciences)